Fuel element for vulcanizers.



bustible or iEn ALPHEUS PAY, 0E LoUIsvnILLE, KENTUCKY. i f

EUEL ELEMENT EUR vuLcANIzERs.

Application filed August l0, 1918.

T0 all whom it may concern:

Be it known that I, ALPHEUS FAX, a citizen of the United States, and aresident of Louisville, in the county of Jefferson rand State ofKentucky, have invented certain new and useful Improvements'in FuelElements for Vulcanizers, of which the follow-- ing is a specification.y

My invention relates to portable vulcanizing apparatus for, applicationof'patches to the inner tubes of pneumatic tires, or to similar articleswhich may be patched in such manner, and more especially to suchvulcanizing apparatus employing a solid combustible generally of fibrousmaterial impregnated with some highly combustible substance. y

The object of my invention is to provide the fuel or combustible in sucha manner that it may be conveniently used 'with various apparatus ofthis character, and whereby the combustion may be more eti'ective andmay more rapidlyheat the patch, thereby economizing in the time and'inthe combustible used, as well as performing the vulcanizing operationmore effectively and thus producing a somewhat better attachment of thepatch.

My invention consists in the new and im'- preved article of manufacturefor the purposes just stated, and which article will hereinafter be moreAfully described and claimed. y v

In the drawing: l,

Figure 1 is a. verticall cross-section of a vulcanizer having a pan andmeans to clamp the pan to the patch, and showing my improved combustibleor fuel element used therewith;

Fig. 2 is a partial similar view of apparatus employing merely a flatplate with a special clamping yoke having a depending rim engaging theplate to clamp it to the patch, and showing how my improved comfuelelement is used therewith;

Fig. 3 is a perspective view of the element shown in section in Figs. land 2; i i

Fig. 4 shows a modification of the element of Figs. l, 2 and 3 in whichthek edges are serrated;

Fig. 5 is another` modification;

Fig. 6 is a longitudinal vertical section on a plane corresponding tothe line 6-6 of F ig. 5;' 1 f Specification of Letters Patent.

vits combustion kPatented Nov. 19, 1918.

serial No. 249,305. Y

Figs. 7, 8 and 9 are further modifications; and i Fig. l0 is aperspective view of the modication of Fig. 9 inverted, and also anapproximately correct similar View of theele- Inent of Figs. l, 2 and 3.

It will be understood that combustible or yfuel element may be used myimproved with any of the various vulcanizingapparatus designed to employsuch solid combustible usually made of heavy paste-board or straw-boardimpregnated with some highly combustible substance or composition. Asrepresenting any of illustrated a rather conventional form in whichthere is the flat base-plate l, a suitable standard 2 spanning thebase-plate, and having a screw r'threaded to run up and down in itsmiddle part over the base-plate, and y'which screw. carries, swiveled toits lower-end, a clamping yoke 4, and is conveniently turned by athumb-piece 5 on the upper endfof the screw above the standard 2. As iswellknown, the inner tube 6 or other article to be patched is laidacross the Ybaseplate undei'the standard 2, which standard in variouskinds of apparatus is properly de- .signed to admit 'the article 6 tothe baseplate Yl, and they patch 7 placed in the desired posltionfon thearticle 6, has, as shown in Fig. 1, the pan 8 placed upon it to beclamped tightly thereagainst and thereby clamp the patch 7 tightlyagainst 'the article 6 by the engagement'of the yoke 4 when the-screw 3is screwed down through the standard 2. The pan 8 holds the fuel orcombustible, which is then lighted, and by generates izey the patch tothe article 6.

`The combustible or fuel, as ordinarily used, is merely placed on thebottom of the pan 8 in such a condition that it burns practically onlyupon its upper side. These ythese apparatus, I have f the heat tovulcanpans are suitable for the use of uid or IfY any departurekcallythe saine extent in all from this relation or" the tuel element tothe pan took place, it was incident to, some special construction ot theapparatus.

ln my present invention, yl provide a coin-V bustible or tuel element ofthegeneral chau acter just alluded to, but make it so that it sustainsits lower surface al material distance away from the bottom of the panr8. Thus. combustible or fuel as shown' lullig. 1, the element 9, whichis mainly flat, has pressed down troni its main part, cupped prot-uhseances 10 at suitable intervals. Merely the bottoms ot theseprotuberances 10V engage with the pan bottoni, and by tar the. majorextent oit the area ot the lower side of the element is raised adistance above thebottoin of the pan approximately that ot the thicknessol the element. I

ln the apparatus shown in Fig.y 2,the parts are the same except that theclamping joke 11 has a depending' riin 12 ywhich engages the tlatplatel13 around near the periphery ot" the plate, and whichjplate 13takes the place ott-he pan 8 resting' directly upon the patch 7 andholding it to the article G under the pressure of vthe yoke 11 aspressed down by the screw 8 in the manner described in connect-ion withFig.' 1. lily improved combustible or fuel element 9, with itsLkprotuberances 10 resting); uponv the upporsurtace ott the plate 13'and holdingthe lower surface ot the 'element 9 up away from the uppersurface oit the'plate 13, thus bears substantiallyr the same relationtoV the parts as it does in the previous example;

This fuel element 9 is more fully shown inllig. 3 where it is seen to beprovided with pertorations 111 interspersed between' the protuberances10 Vto facilitate the passage ot air down to or up troni the spacebetween the Jtuel element and the heat-transmitting element, such as thepan 8 and the pl'atel. The modified element 9a in Fig. .4l is like thatotligs. 1 to 3, inclusive, but has serrat-ions 1o around its edges.TWith these, even it' the element is placed too iarover to one side oi'the pan 8 or plate 13, so that it engages with one side ot the pan 8o'r'o't the rim 19 Vot the yoke 11, there will still be spaces in theserrations 15 for the4 circulation of air at that side. Also, Veven itthe patch isot practidirections as the interior ot the pan 8 or ot theyoke 11, it may yetlbe forced into the space andits serrations 1twill'yield suiliciently for this and also rleave air circulatinjgspacesaround the edges, in additionto the spacesV aorded by thepertorations14k.v

1n Figs. 5 and 6, the element 9b has modified protnberancesin the torniot short tongues 16, pressedldown troni openings 17, which thus provideair spaces in a dditio'n to thoseprovided'by the perforations 14, and byvirtue ot, which these pertorations 1e may, it desired, be dispensedwith.

- bustion ot the entire element.

naeaoe? ln Fig. 7, the element 9C h as lugs formed at intervals aroundits edges which are turned down to form the protuberances 18. Theelement has the perforations 14C distributed throughout i'ts interior.

ln Fig- S, the element 9d is simply transversely corrugated throughoutits length and has the pertorat-ions 1e suitably distril ut'ed. rEhe'alternate corrugations 19 thus :torni the protuberances that support theintervening surfaces away tromthe plate or pan upon which thecombustible or 'heating element' Tests.

rllhe element 9e et F 9 has its protuberances 2O 'formed as separatepieces and suitably secured to the tlat niai'n part i1,

which has the pertorations le. The appearance ot the under side ot thistlat main part 21 with its att-ached protuberances '2O is indicated inFig. 10. lt :will also be understoodV that where the protuberances Varepressed down in the torni ot' cups, as the protuberancoslO ot' Figs. 1to 1, their bot'- tonis will appear substantially as the protul berances2O shown in Fig. 10.

All ot the examples are shown as provided with the periorations 14; butit will be understood that these are not essential elements ot myinvention. They are preferable because they kperniit of 'more thoroughconi- They are ot use even though the lower side of the ele nient resteddirectly upon the panV or plate that conducts the heat to the patch.`When the lower side of the combustible elementis elevated so that therecan be substantial coniq bustion on the lower` side, these perforationsperinit of afbetter dra-tt in adjacent parts of the combustion space anda more thorough distribution of the .combustion throughout the body otthe combustible. portant object o niy'invention is to insure thiscombustion on the loiwerside ot the element by means embodied in theelement itself, so that this kind ot yulcanizing operation may beemployed even though the apparatus `available is not particularlydesigned for' any but the ordinary use of the combustible elementlyingliat upon the upper surface of the heat-conducting;element. llVhere thecombustible element is used in this ordinary way without permitting theproper combustion on the lowerside, but relying upon the combustiontaking `place on the upper side of the element, the heat trans missionto the patchisvery indirect, and it may be said that there is directtransmission of heat trom 'the coin ustible or tuelthrough Yso But theiin- Y the plate or pan from the patch only during cally all of theoperation, is tar more eective and economical and saves considerabletime; and by providing a fuel element which is adapted to assume thisrelation toward the parts of practically any kind of apparatus of thisgeneral character without any special attention on the part of theoperator, the advantages alluded to are further in creased. l/Vith thecorrugated element 9d of Fig. 8 it is not even necessary to observewhich side is placed downward, as it has the protuberances 19 extendingin both directions. The other examples may also have oppositely extendedprotuberances if desired. v

Various kind of protuberances are illustrated, and it will be understoodthat any of these, or others which are equivalent, may he used singly orin combination in the same element; and that my invention is otherwisesusceptible to considerable modification as may be dictated byrequirements. Accordingly, while certain constructional details aredeemed preferable in connection with my invention, and I have shown anddescribed these rather specifically in elucidating the construction anduse of my invention, as is required, I do not wish to be understood asbeing limited to such precise showing 'and description, but having thusfully described my invention, what I claim Copies of this patent may beobtained for ve cents each, by addressing the as new and desire tosecure by Letters Pat- A ent is:

l. As a new and improved article of manufacture, a fuel element for usein a vulcanizer, comprising a main part with a relatively widelyextended lower surface, and a plurality of protuberances extended fromsaid main part to bear upon a suitable object to be heated and supportsaid element thereon with said main part exposed a suitable distanceaway from said object to permit adequate combustion of said element onits side adjacent to said object.

As a new and improved article of manufacture, a fuel element for use ina vulcanizer, comprising a main part with its upper and lower surfacesrelatively widely extended, and a plurality of protuberances in saidupper and lower surfaces extended from said main part to bear upon asuitable object to be heated and support said element thereon with saidmain part exposed a suitable distance away from said object to permitadequate combustion of said element on its side adjacent to said object.

ALPHEUS FAY.

Witnesses CLARENCE PERDEW, IRENE PARKER.

Commissioner of Patents,

Washington, D. C.

